Robbie L's Enrolled Lessons

9 minFREEMath lessonFree5 CQ
In this math lesson, first learn how to acquire a number sense critical for developing math skills, and then try out the Number Rhyming System for mental math!
with Sanjay NoronhaIn this math lesson, first learn how to acquire a number sense critical for developing math skills, and then try out the Number Rhyming System for mental math!

10 minMath lesson6 CQ
Can you square triple digit numbers in your head? After learning the simple methods introduced in this approachable mental math lesson, you will know how!
with Sanjay NoronhaCan you square triple digit numbers in your head? After learning the simple methods introduced in this approachable mental math lesson, you will know how!

9 minMath lesson5 CQ
Get ready to learn about the pillar of arithmetic in a totally new way! By the end of this math lesson you will know why number sense matters in multiplication.
with Sanjay NoronhaGet ready to learn about the pillar of arithmetic in a totally new way! By the end of this math lesson you will know why number sense matters in multiplication.

8 minMath lesson5 CQ
In this rapid math lesson on the nine times tables, learn a technique to help you tackle a basic problem like 9 x 8, or a monster like 9,999,999 x 8,888,888!
with Sanjay NoronhaIn this rapid math lesson on the nine times tables, learn a technique to help you tackle a basic problem like 9 x 8, or a monster like 9,999,999 x 8,888,888!

9 minMath lesson5 CQ
A math problem such as 9 x 8 may appear mundane, but there is elegance to solving the problem using the Nikhilam sutra, or the Base 10 method!
with Sanjay NoronhaA math problem such as 9 x 8 may appear mundane, but there is elegance to solving the problem using the Nikhilam sutra, or the Base 10 method!

10 minMath lesson6 CQ
Finding the value of 9 x 12 may be easy, but try 99,986 x 100,006. Not so simple. In this math lesson apply the Nikhilam Sutra to big number multiplication!
with Sanjay NoronhaFinding the value of 9 x 12 may be easy, but try 99,986 x 100,006. Not so simple. In this math lesson apply the Nikhilam Sutra to big number multiplication!

8 minMath lesson5 CQ
Are you ready to solve math problems faster and more accurately? In this rapid math lesson discover the secrets of the Urdhva Tiryak Sutra method!
with Sanjay NoronhaAre you ready to solve math problems faster and more accurately? In this rapid math lesson discover the secrets of the Urdhva Tiryak Sutra method!

8 minMath lesson5 CQ
Now that you are familiar with methods to quickly multiply numbers close to powers of 10, learn to use other bases and verify results without a calculator!
with Sanjay NoronhaNow that you are familiar with methods to quickly multiply numbers close to powers of 10, learn to use other bases and verify results without a calculator!

7 minMath lesson4 CQ
Continue learning about special multiplication cases in this rapid math lesson! Learn to multiply anything by 11 by writing down the problem differently.
with Sanjay NoronhaContinue learning about special multiplication cases in this rapid math lesson! Learn to multiply anything by 11 by writing down the problem differently.

11 minMath lesson6 CQ
In this final lesson on Vedic Math, take a look at the math behind the base 100 technique and the the vertical and crosswise method for solving math problems!
with Sanjay NoronhaIn this final lesson on Vedic Math, take a look at the math behind the base 100 technique and the the vertical and crosswise method for solving math problems!